Knowledge base for software setup, errors, and daily tool work.

Fix Microsoft Store Error 0x80073cf3: Service Unavailable

When you see error code 0x80073cf3 in the Microsoft Store, it usually means the Store can't reach...

Chrome Profile SSL Certificate Error: Step-by-Step Fix

You open Chrome and see a warning like “NET::ERR_CERT_COMMON_NAME_INVALID” or “Your connection is...

Fix Windows Update Assistant Not Working on Mac

If you're running Windows on a Mac via Boot Camp, Parallels, or another virtual machine, the Wind...

How to Fix Windows Activation High CPU Usage

If you notice your PC's CPU usage spiking to 100% for no clear reason, a hung or misconfigured Wi...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

How to Enable Remote Desktop Connections in Windows Firewall

When you try to connect to a Windows PC using Remote Desktop (RDP) and get a connection error, th...